问题
选择题
On turning on the computer, .
A．Mum told me to have supper.
B．a game appeared on the screen.
C．there was something wrong with the mouse
D．I found a strange E-mail.
答案
答案：D
这题考察句子结构,on doing“一…就”，doing的逻辑主语和句子的主语是一致的，应该是I做主语，选D，句意是：一关掉电脑，我就发现一个奇怪的电子邮件。选D。